Improvement in gage-cocks



w. ANDREWS.

I [GAGE-COOK.

No. 174,344. Patented March 7,1876.

m/ Z 4 -vn/ UNITED STATES PATENT OFFICE.

WILLIAM ANDREWS, or LIsBoN, MAINE.

IMPROVEMENT IN GAGE-COCKS.

Specification forming part of Letters Patent No. l 74,344,:dated March7, 1876; application filed To all whom it may concern: Be it known thatI, WILLIAM ANDREWS, of Lisbon, in "the county of Androscoggin and Stateof Maine, have invented certain new and useful Improvements in Water-Gages or Stop-Valves; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable othersskilled in the art to which it pertains to makeand use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification.

The drawing shows a vertical section of my invention.

Same letters show like parts.

The purpose of my invention is to provide a stop-valve for a Water-cockand in a watercock, which will be perfectly tight, easily 0perated, andnot subject to be opened by the pressure of the water.

a. shows the partof my invention which is inserted .into or connectedwith that from which the water is drawn. This is horizontal, perforated,of course, and connected with the vertical part b, which part has aholethough it, communicating with a hole in the part a. Into the holethrough the vertical part b is placed the vertically-moving piston c.This piston is provided with the apertures 61, which lead into thetubular part eof the piston, which tubular part is the delivery ordischarging por' tion of the valve. The'vertical piston is provided witha head or shoulder, f, and when the piston is dropped down as far aspermit ted by the head the apertures are no longer in conjunction withthe forward end of the hole in the part a, and the flow of the waterisjection on the top of the part a, and again to the inner end of thelever h. The lever h is connected with the head of the vertical pistonat i by a bolt, and fits into a slotin said head, as shown in thedrawing. By lifting upon the lever h the valve is opened, and bypressing down upon the same lever it is closed. There January 17, 1876.v

is made in the hole through the part b, at the point where the hole inthe part (1 opens into it, an enlargement or chamber, It, so that whenthe apertures in the piston are placed in conjunction with the mouth ofthe hole in the part a the water is permitted to flow all around thepiston, and so enter the tubular or hollow part thereof through all ofthe apertures at once. j are screw-caps on the ends of the vertical partb, and have interior shoulders k. l are shoulders on the interior of thehole of the vertical part b. Resting upon these shoulders lare placedleather or other proper packings n. m are metal followers, which, whenthe screw caps are screwed down,

are pressed down upon the leather or other packing, thus causing it toform a tight joint around the piston.

It Will be perceived that the packing at or near both ends of the holeof the vertical part b effectually prevents the passage of the waterbeyond them, and when the apertures in the vertical piston are movedbelow the lower packing the cock is effectually closed and the exit ofWater prevented.

It will also be perceived that the pressure of the water is equal on allsides of the piston. This prevents any pressure which would tend todestroy the packing.

What I claim as my invention, and desire to secure by Letters Patent,is-- 1. The stop-water valve constructed as described, and consisting ofthe parts a and b, the vertically-moving piston 0, having the aperturesd and thetubular part e, the screwcaps j, packings a, and followers m,and the levers g h, in combination, as-described.

2. The combination of the parts a and b, the part b having the chamberk, the vertically-moving piston 0, having the apertures d and thetubular part e, the screw-caps j, packings n, and followers m, and thelevers g h,

substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

' WM. ANDREWS.

Witnesses:

FRANK H. JORDAN, WM. HENRY CLIFFORD.

